Java .isEmpty()

The .isEmpty() method returns true if a string has no content. It returns false if the string has content.

Syntax

string.isEmpty();

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• string: The string to be checked for content.

Example 1

The example below applies the .isEmpty() method to the strings drink and food:

// isStringEmpty.java
class isStringEmpty {
  public static void main(String[] args) {
    String drink = "lemonade";
    String food = "";

    System.out.println(drink.isEmpty());
    System.out.println(food.isEmpty());
  }
}

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This will print the following output:

false
true

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